number 5 is not and number 7 is a function because every input has exactly one output
Answer:
i think the answer is 23
Step-by-step explanation:
well the equation says c=45+7n so the total cost is 206 . i subtracted 45 from 206 leaving me with 161 then i divided that by 7 leaving me with 23
2x+4=7 subtract 4 from both sides
2x=3 divide both sides by 2
x=3/2
x=1.5
The answer would be the following:
9 x - 4 = 4x + 16
For angle A, you need to do 180-130 which is 50
for angle B, you need to do 180- 90 - 50 which is 40
for angle C, you need to do 180 - 60 - 40 which is 80
If you want me to explain you with further details with how exactly I got those answers and how I knew what to do, then ask me.
